Necromancer

Necromancer is a classification of humans that were trapped in hell for so long that their bodies have evolved to share traits similar to those of demons and they developed views that are not befitting of humans. The most notable traits are their white hair and blood-red eyes, which made humans consider them demons with human skins, as their hearts are magic jewels of necromancy. They usually have high mana due to spending a long time fighting in hell, causing them to exert excessive body fluid when they came back to the human world.